{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["country of headquarters", "cities of residence", "countries of residence", "employee of"], "input": "State-owned  Air Koryo  has scheduled flights from  Pyongyang  Sunan International Airport to Beijing ( PEK ) Shenyang ( SHE ) Vladivostok ( VVO ) Moscow ( SVO ) Bangkok ( BKK ) Khabarovsk ( KHV ) Kuala Lumpur ( KUL ) Shanghai ( PVG ) and Kuwait City ( KWI ) Air Koryo also operates limited scheduled service to a few domestic destinations ."}
{"country of headquarters": [], "cities of residence": [], "countries of residence": [], "employee of": []}